Replacement valve seat device with expandable ring
US5247960A · kind A · utility
18Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1992 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Mar 27, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6079
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A replacement valve seat device for insertion in a recess of a valve where a valve seat has been removed includes a first ring which provides a valve seat and a cooperating second ring of memory metal which is expandable upon being heated above its transistion temperature to fixedly position the first ring in position within the recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.